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α-D-Tocopherol CAS No.59-02-9 / Cat No.EBD2205475
α-D-生育酚
维他命Eα
(+)-α-生育酚
(R)-2,5,7,8-四甲基-2-((4R,8R)-4,8,12-三甲基十三烷基)苯并吡喃-6-醇
D-α-生育酚
维生素E(常以醋酸酯形式存在)
维生素E杂质7(维生素杂质)
Properties
light yellow liquid
0.95 g/mL at 25 °C(lit.)
2.5-3.5 °C
200-220 °C/0.1 mmHg(lit.)
110 °C
−20°C
n20/D 1.505(lit.)
24 º (c=2, in isooctane 25 ºC)
INSOLUBLE
Safety Information
None
NMR Spectrum
Prediction: H-NMR (CDCl3) data for (all-rac)-[alpha]-tocopherol are 0.90 ppm (m, 12 H, CH3), 1.0-1.9 ppm (m, 26 H, CH3, CH2, CH), 2.10 and 2.17 ppm (both s, 9 H, CH3-Ar), 2.60 ppm (t, 2 H, C4H2), 4.3 (s, 1 H, OH)
1H NMR
13C NMR